Dr. Rena Zimmerman, a board certified radiation oncologist, right, and radiation therapist Melissa Walker assist a patient recently at the Grand Lake Regional Cancer Center in Celina. The nonprofit agency has been in business now for more than three years and officials are pleased with its accomplishments so far, including a growing focus on community outreach.

Since opening its doors more than three years ago, the Grand Lake Regional Cancer Center in Celina is thriving, center officials say.
At least part of the reason for its success, so far, may be its interaction with the communit . . .